You are here: Start » Function Reference » Geometry 2D Features » SegmentNormalVector

SegmentNormalVector

Computes an unitary vector perpendicular to the segment.

Syntax

void avl::SegmentNormalVector
(
	const avl::Segment2D& inSegment,
	avl::Vector2D& outNormalVector
)

void SegmentNormalVector
(
	Segment2D inSegment,
	out Vector2D outNormalVector
)

Parameters

	Name	Type	Default	Description
	inSegment	const Segment2D&
	outNormalVector	Vector2D&

Description

Note that because of inaccuracies of floating-point arithmetic, some geometric operations (including this one) may lead to unpredictable results for degenerated cases. In this filter such a case occurs when an empty segment is given on input.

Examples

SegmentNormalVector performed on a segment with parameters: X1 = 50, Y1 = 50, X2 = 300, Y2 = 300.
outNormalVector result shown on the right picture.